package com.slanmao.common.utils;


import com.slanmao.entity.AreaServ;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

public class ExcelUtils {

    public static Workbook getWorkBook(MultipartFile file) throws IOException {
        //获得文件名
        String fileName = file.getOriginalFilename();
        //创建Workbook工作薄对象，表示整个excel
        Workbook workbook = null;
        //获取excel文件的io流
        InputStream is = file.getInputStream();
        //根据文件后缀名不同(xls和xlsx)获得不同的Workbook实现类对象
        if(fileName.endsWith("xls")){
            //2003
            workbook = new HSSFWorkbook(is);
        }else if(fileName.endsWith("xlsx")){
            //2007
            workbook = new XSSFWorkbook(is);
        }
        return workbook;
    }

    public static String getCellValue(Cell cell){
        String cellValue = "";
        if(cell == null){
            return cellValue;
        }
        //把数字当成String来读，避免出现1读成1.0的情况
        if(cell.getCellType() == Cell.CELL_TYPE_NUMERIC){
            cell.setCellType(Cell.CELL_TYPE_STRING);
        }
        //判断数据的类型
        switch (cell.getCellType()){
            case Cell.CELL_TYPE_NUMERIC: //数字
                cellValue = String.valueOf(cell.getNumericCellValue());
                break;
            case Cell.CELL_TYPE_STRING: //字符串
                cellValue = String.valueOf(cell.getStringCellValue());
                break;
            case Cell.CELL_TYPE_BOOLEAN: //Boolean
                cellValue = String.valueOf(cell.getBooleanCellValue());
                break;
            case Cell.CELL_TYPE_FORMULA: //公式
//                cellValue = String.valueOf(cell.getCellFormula());
                cellValue = String.valueOf(cell.getStringCellValue());
                break;
            case Cell.CELL_TYPE_BLANK: //空值
                cellValue = "";
                break;
            case Cell.CELL_TYPE_ERROR: //故障
                cellValue = "非法字符";
                break;
            default:
                cellValue = "未知类型";
                break;
        }
        return cellValue;
    }

    public static List<AreaServ> excelToAreaServ(MultipartFile file) throws IOException {
        Workbook workbook = getWorkBook(file);
        //创建返回对象，把每行中的值作为一个数组，所有行作为一个集合返回
        List<AreaServ> list = new ArrayList<>();
        if(workbook != null){
            for(int sheetNum = 0;sheetNum < workbook.getNumberOfSheets();sheetNum++){
                //获得当前sheet工作表
                Sheet sheet = workbook.getSheetAt(sheetNum);
                if(sheet == null){
                    continue;
                }
                //获得当前sheet的开始行
                int firstRowNum  = sheet.getFirstRowNum();
                //获得当前sheet的结束行
                int lastRowNum = sheet.getLastRowNum();
                //循环除了第一行的所有行
                for(int rowNum = firstRowNum+1;rowNum <= lastRowNum;rowNum++){ //为了过滤到第一行因为我的第一行是数据库的列
                    //获得当前行
                    Row row = sheet.getRow(rowNum);
                    if(row == null){
                        continue;
                    }

                    AreaServ areaServ = new AreaServ();
                    //获得当前行的开始列
                    int firstCellNum = row.getFirstCellNum();
                    //获得当前行的列数
                    int lastCellNum = row.getLastCellNum();//为空列获取
                    //int lastCellNum = row.getPhysicalNumberOfCells();//为空列不获取
                    //String[] cells = new String[row.getPhysicalNumberOfCells()];

                    //填充ID
//                    Cell id = row.getCell(firstCellNum);
//                    areaServ.setId(Integer.parseInt(getCellValue(id)));

                    //填充省
                    Cell province = row.getCell(firstCellNum);
                    areaServ.setProvince(getCellValue(province));

                    Cell city = row.getCell(firstCellNum + 1);
                    areaServ.setCity(getCellValue(city));

                    Cell district = row.getCell(firstCellNum + 2);
                    areaServ.setDistrict(getCellValue(district));

                    Cell other = row.getCell(firstCellNum +3);
                    areaServ.setOther(getCellValue(other));

                    Cell company = row.getCell(firstCellNum + 4);
                    areaServ.setCompany(getCellValue(company));

                    Cell custom = row.getCell(firstCellNum + 5);
                    areaServ.setCustom(getCellValue(custom));

                    Cell oncall = row.getCell(firstCellNum + 6);
                    if (getCellValue(oncall).equals("是")){
                        areaServ.setOncall(1);
                    }

                    Cell repair = row.getCell(firstCellNum + 7);
                    areaServ.setRepair(getCellValue(repair));

                    Cell complaint = row.getCell(firstCellNum + 8);
                    areaServ.setComplain(getCellValue(complaint));

                    Cell official = row.getCell(firstCellNum + 9);
                    areaServ.setOffcialsite(getCellValue(official));

                    list.add(areaServ);
                }

            }
        }
        return list;
    }
}
